Compilare: main.cpp: In function 'void solve()': main.cpp:65:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for(int i = 0; i < cc[1].size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:71:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int j = 0; j < con.size(); j++) | ~~^~~~~~~~~~~~ main.cpp:82:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for(int j = 0; j < cc[i].size(); j++) | ~~^~~~~~~~~~~~~~ main.cpp:87:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | for(int i = 0; i < ans.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:61:9: warning: unused variable 'edges' [-Wunused-variable] 61 | int edges = 0; | ^~~~~